The charger consists of a UK 13 amp 3 pin plug which houses the transformer. The lead from this plug then plugs in to the plastic base unit (12 v 1 amp output) and the 2 x plastic battery pods drop in to the base unit. To charge just plug in to a wall socket that's it.
On the plus side:
1) The charger is light, fairly compact and can be broken down in to its base units making it easy to travel with.
2) This charger has 2 removable pods which hold 4 batteries each and comes supplied with 2x AA 2650mAh cells & 2x AAA 1000mAh cells.
3) Each pod has 2 x toggle bars inside which allows you to convert between AA size and AAA size batteries, so you could theoretically have a mix of AA & AAA in a single pod. Or so you may think, but actually you can't please read on.
4) There is an indicator on each pod which shows the state of the charge, red, red amber for charging and sold green for fully charged. Nice and simple
5) Charge times are as stated, 3hr per pod which is not bad
6) The unit is easy to use. Just plug in and away you go.
So on the whole it sounds as good as you are going to get, as an all round value for money proposition, however when I tried to charge 2 x AA & 2 x AAA in one pod it did not work, no charging status lights nothing.
When I tried a mixture of AA batteries of different capacities i.e. some 2500mAH and some 2100mAH in one pod it did not work.
So I was about to through it away as I thought it was broken until I read a review on Amazon touching on this issue. Putting matching higher capacity batteries back in the pods got it working again.
There for the down side is that if you have a mixed set of batteries capacities, batteries of poor condition, and batteries with low mAH ratings you could quite probably find this charger problematic or even totally useless.